Showing posts with label weed. Show all posts
Showing posts with label weed. Show all posts

Saturday, 26 January 2019

Invasive species - Pom-pom weed (Campuloclinium macrocephalum)

Following the tractor around on our smallholding in Tarlton, Gauteng (south Africa), I also get a chance to ‘rescue’ small wildlife and flowers, giving the driver strict instructions to ‘go around’ it. This Pompom weed was blowing around briskly in the breeze and I had to hold it still to get a shot. These wildflowers have been blooming on our smallholding the whole summer, making bright pink splashes against the blue-green grass all along our fence.


The Pompom weed (Campuloclinium macrocephalum) is an ornamental South American herb belonging to the daisy family, Asteraceae. It is rapidly becoming the most serious threat to the conservation of grasslands in South Africa. Infestations become conspicuous when the plants are in flower between December and March, transforming the veld from green to pink. The plant initially establishes itself in disturbed sites such as roadsides, but then invades natural grasslands, open savanna and wetlands. This weed displaces native species, reducing both the biological diversity and carrying capacity of vleis and veld.


The plant initially establishes itself in disturbed sites such as roadsides, but then invades natural grasslands, open savanna and wetlands. This weed displaces native species, reducing both the biological diversity and carrying capacity of wetlands and veld. During winter the plant is not visible above-ground.  

However, now there is good news! Bio-control scientists have released a tiny insect to wage war on the dreaded invasive Argentinian pompom weed and save our Highveld grasslands. Recently, bio-control scientists celebrated the release of a tiny insect known as the pompom thrips (Liothrips tractabilis) by releasing them  into fields of pink-flowering pompom weed at Rietvlei Nature Reserve, south east of Pretoria.    



Very difficult to remove (I tried pulling out a few of them and actually got nowhere - this weed breaks off just above the ground, leaving the large, tough roots underground.) Recruited from Argentina, where pompom weed is indigenous, the newly-released pompom Liothrips causes significant damage to the stems and leaf tissue at the growing tips. This causes deformities in plant growth, reducing the height, biomass and flower production of this unwanted weed. Scientists also warn that it will take several seasons for entomologists to build up large enough populations of Liothrips to halt the spread of pompom weed.

You can read more about this bio-control here

Wednesday, 19 February 2014

The beauty of weeds

They know, they just know where to grow, how to dupe you, and how to camouflage themselves among the perfectly respectable plants, they just know, and therefore, I’ve concluded weeds must have brains.
~Dianne Benson, Dirt, 1994



Wikipedia says, “Weed is a term used commonly to describe unwanted plants in human-controlled settings, such as farm fields, gardens, lawns, and parks — and carries no botanical classification value, since a plant that is a weed in one context is not a weed when growing where it is wanted”.

There are many weeds equally as beautiful as any wanted flower planted in a garden. There are some that I welcome in my garden, like the Dandelion, the Pom-pom weed and this beauty, which looks like nothing until it’s insignificant little flowers burst into gorgeous fluff balls.

Which of my photographs is my favourite? The one I’m going to take tomorrow.
-Imogen Cunningham


Khaki bush seeds (Tagetes munuta)

I absolutely LOVE Khaki bush (also known as Black Jacks), but I also have this love-hate relationship with it. It has these tenaciously sticky seeds that come off from the seed heads at the slightest touch and embed themselves in any form of clothing.

After walking through a field of these you can end up looking like you are covered in black spiky fur. During my walks on our smallholding, I always try and dodge them but inevitably I end up spending hours plucking them from my pants and socks. The solution? Wear shorts…

The leaves and flowers are a good insect repellent and are often seen hanging from native huts to deter swarms of flies and mosquitoes. I pull out the complete plant, strip off the leaves, releasing the strong perfume and throw it amongst the bedding of my chickens in the chicken coop. In a 5% dilution, tagetes oil has been used to kill maggots in open wounds, while the roots and seeds have been found to help rid the body of poisons. After the Boer war in South Africa, Australian troops brought plants to their native land where it grew profusely. It is an ingredient of many foot treatment preparations and is also used in some perfumes.

With the grass turning yellow and a nip in the morning air, it’s plain that we’re heading for Autumn already. One of our March/April jobs on the smallholding is to cut the grass and make fire-breaks. We started early this year as Nature is clearly indicating she has plans for an early Winter!

Pompom weed (Campuloclinium macrocephalum)

Following the tractor around, I also get a chance to ‘rescue’ small wildlife and flowers, giving the driver strict instructions to ‘go around’ it. This Pompom weed was blowing around briskly in the breeze and I had to hold it still to get a shot. These wildflowers have been blooming on our smallholding the whole summer, making bright pink splashes against the blue-green grass all along our fence.

 Pom-pom weed

 Pom-pom weed


The Pompom weed (Campuloclinium macrocephalum) is an ornamental South American herb belonging to the daisy family, Asteraceae. It is rapidly becoming the most serious threat to the conservation of grasslands in South Africa. Infestations become conspicuous when the plants are in flower between December and March, transforming the veld from green to pink. The plant initially establishes itself in disturbed sites such as roadsides, but then invades natural grasslands, open savanna and wetlands. This weed displaces native species, reducing both the biological diversity and carrying capacity of vleis and veld.

John Steinbeck once wrote, ‘Change comes like a little wind that ruffles the curtains at dawn, and it comes like a stealthy perfume of wildflowers hidden in the grass.’


An absolute favourite of mine is Dandelions - the tiny little yellow flowers are absolutely gorgeous when viewed close-up and the seeds are a wonder of nature. Dandelion Taraxacum is a large genus of flowering plants in the family Asteraceae. They are native to Eurasia and North and South America, and two species, T. officinale and T. erythrospermum, are found as weeds worldwide. Both species are edible in their entirety.




 Dandelions taking off in the breeze



While many people think of the dandelion (Taraxacum officinale) as a pesky weed, it's chock full of vitamins A, B, C, and D, as well as minerals such as iron, potassium, and zinc. Dandelion leaves are used to add flavor to salads, sandwiches, and teas. The roots are used in some coffee substitutes, and the flowers are used to make wines.

An area of my lawn covered in Dandelions - they provide such a beautiful splash of colour

 Salsify

Walking around the area of my wildlife pond, I saw what looked like a GIANT DANDELION, but upon closer inspection, I could see that, besides it’s size, there was something different. So off to Google I went and found that it was Salsify, and I’m absolutely thrilled that I have this lovely herb in my garden!


This is a plant with a root and not actually a weed at all, but a vegetable, much like a carrot, that can be eaten. But it certainly looks and acts like a weed! Salsify (Tragopogon porrifolius) looks like a giant dandelion, and in a similar fashion, the bright yellow flower turns into a dainty, but large, puffball, dispersing hundreds of seeds into the wind.

Salsify is also known as Goat’s Beard or Vegetable Oyster as their mild and sweet flavour is often compared to that of oysters. Some say they have a slight asparagus or artichoke taste, with an after-taste of coconut. The leaves of the salsify plant are edible; this root vegetable is not often seen in supermarkets in South Africa, but is as easy to grow as carrots or parsnips.

Salsify

The Salsify pom-pom before opening

So next time, before you just pull out all the weeds in your garden, leave them for a while to see what flower it produces, you might just be pleasantly surprised!

.

Tuesday, 22 October 2013

Salsify (Tragopogon porrifolius)

They say you learn something every day. Today I learnt what Salsify is! 


Walking through my garden at the pond, where I have purely indigenous grasses and leave it fairly wild, I saw what looked like a GIANT DANDELION but upon closer inspection I could see that, besides it's size, there was something different. So off to Google and I'm absolutely thrilled that I have this lovely "vegetable" in my garden!

Salsify (Tragopogon porrifolius) is a common biennial wildflower, native to Mediterranean regions of Europe but introduced elsewhere, for example, into Great Britain, (mainly in the south) and northern Europe, North America, in southern Africa and in Australia; in the United States it is now found growing wild in almost every state, including Hawaii, except in the extreme south-east.


This is a plant with a root that can be eaten. Salsify looks like a giant dandelion, and in a similar fashion the purple flower (some species have a bright yellow flower) turns into a dainty, but LARGE, puffball, dispersing hundreds of seeds into the wind. Salsify is also known as Goat's Beard or Vegetable Oyster as their mild and sweet flavor is often compared to that of oysters. Some say they have a slight asparagus or artichoke taste, with an aftertaste of coconut. The leaves of the salsify plant are edible; this root vegetable is not often seen in supermarkets in South Africa, but is as easy to grow as carrots or parsnips.


• Easy to grow. Sow in garden. Sow seed at a depth approximately three times the diameter of the seed. Best planted at soil temperatures between 10°C and 30°C.
• Space plants: 15 - 20 cm apart
• Harvest in 14-21 weeks.
• Compatible with: Beans, Brassicas, Carrots, Celeriac, Endive, Kohlrabi, Leeks, Lettuce, Alliums, Spinach


It is a fairly slow-growing vegetable but can be harvested in small amounts as required. The ground can be loosened with a fork and a few roots lifted for use.


The plant grows to around 120cm in height. As with other Tragopogon species, its stem is largely un-branched, and the leaves are somewhat grass-like. It exudes a milky juice from the stems.


When buying, choose firm, medium-sized salsify, with no damp parts.

Preparing
:
Both varieties of salsify oxidize when peeled or cut. Immerse them in water mixed with a little lemon juice or vinegar or boil them whole for 15 min before peeling and preparing. Their skin can temporarily stain hands when peeling.

Serving Ideas
:
Salsify and black salsify are delicious in soups and stews or in a gratin, with béchamel or cheese sauce. They can be eaten cold, dressed with a vinaigrette. Salsify goes well with potato, leek, celery, onion and spinach. They are delicious braised with veal, poultry or fish; they can be glazed in the same way as carrots.

Storing
:
Both varieties of salsify are best used fresh. 
In the fridge: several days, unwashed in a loosely closed or perforated plastic bag.

(Image from Good Food) I wasn't going to up-root mine to see what the roots look like!

Cooking
 :
Cook briefly so that the flesh does not become mushy.


Steamed: 10-15 min (recommended 
cooking method).

Boiled: 8-12 min.

Salsify is a good source of potassium and contains vitamin B6, vitamin C, magnesium, folic acid and phosphorus. It also contains inulin (a carbohydrate close to starch), which is suitable for diabetics to eat, as it does not affect blood sugar levels. Salsify is blood thinning and has a decongestant effect on the liver and kidneys.

 Very often mistaken for grass or some obnoxious weed, Salsify is easy to miss. So keep an eye open when weeding, you might be getting rid of your next meal!

.

Related Posts Plugin for WordPress, Blogger...